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SERVICING AND MAINTENANCE 401
American Petroleum Institute (API) Engine
Oil Identification Symbol — Gas Engine
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacturer only recommends API
Certified engine oils.
This symbol certifies 0W-20, 5W-20, 0W-30,
5W-30 and 10W-30 engine oils.
American Petroleum Institute (API) Engine
Oil Identification Symbol — Diesel Engine
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacturer only recommends API
Certified engine oils.
Oils with a high ash content may produce
damaging deposits on cylinder head valves
and/or aftertreatment system damage. A
maximum sulfated ash content of 1.00 mass %
is recommended for all oil used in the engine.
The same oil change interval is to be followed
for synthetic oil as for petroleum based oil. Also,
synthetic oil must meet the same performance
specifications as petroleum oil.
Engine Oil Viscosity — Gas Engine
Use Mopar SAE 0W-40 engine oil approved to
FCA Material Standard MS-12633 such as
Pennzoil Ultra equivalent is recommended for
all operating temperatures.
The engine oil filler cap also shows the
recommended engine oil viscosity for your
engine. For information on engine oil filler cap
location, refer to the “Engine Compartment”
illustration in this section.
Lubricants which do not have both the engine
oil certification mark and the correct SAE
viscosity grade number should not be used.
Engine Oil Viscosity — Diesel Engine
In ambient temperatures above 0°F (-18°C),
we recommend you use SAE 10W-30 engine oil
such as Mopar, Shell Rotella and Shell Rimula
that meets FCA Material Standard MS-10902
and the API CK-4 engine oil category is required.
Products meeting Cummins CES 20081 may
also be used. The identification of these engine
oils is typically located on the back of the oil
container.
In ambient temperatures below 0°F (-18°C), we
recommend you use SAE 5W-40 synthetic
engine oil such as Mopar, Shell Rotella and
Shell Rimula that meets FCA Material Standard
MS-10902 and the API CK-4 engine oil category
is required.
CAUTION!
Do not use chemical flushes in your engine oil
as the chemicals can damage your engine.
Such damage is not covered by the New
Vehicle Limited Warranty.
CAUTION!
Do not use chemical flushes in your engine oil
as the chemicals can damage your engine.
Such damage is not covered by the New
Vehicle Limited Warranty.
CAUTION!
Failure to use SAE 5W-40 synthetic engine oil
in ambient temperatures below 0°F (-18°C)
could result in severe engine damage.
7
20_DJD2_OM_EN_USC_t.book Page 401
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